Well in my first post I said it was "Harder to permanently increase SPECIAL values" in FO3 than FO4. Which it is.I forgot about the bobbleheads. But unless you know where they are and actively seek them out you ain't getting 10 in all SPECIAL within a few hours. You also went out with the specific purpose to get them to 10 and in a way grinded for that specific purpose.
You implied (or at least that's what I've interpreted from your posts) that it was easy to just whip it all up to 10 within mere hours, as if the player doesn't even have to try. Which is flat out wrong. Yes, it can happen. Yes, it is easy if you know what to do and aim for specifically that. But then you're at level 34 or 43 (depending on whether or not you went for the bobbleheads) and now you got tier one modded weapons and no damage modifier perks which means that combat will be a total chore.
Fallout 4's system is shit. I dislike that we can level up stats. But it is still about choice and consequence. You 'can' level up your stats to 10 if you know what to do and go for specifically that, but it'll gimp your character in pretty much everything else and by that level it will slow down to a crawl.
On my second post I admit I didn't thought how people might interpret my words. By a few hours I meant around 40-50 hours, which for me is a few hours when you play FO4.
I am not a super player and I did it when I wanted to make all SPECIAL 10. So when someone wants to do it, it is possible.
Now I asked my friends who still play FO4 and one told me he can reach level 35 in 24 real time hours (although picking perks of course) and my other friend said he doesn't know about reaching that level but his level 60 survival mode character has 118 hours invested in it and he admits he spends a lot of time in settlement building mode to try and make what he calls "perfect settlements".
Now lets say that a player that does not want to make a character without perks and get gimped like you said is playing, it is still possible to level 1 SPECIAL and get 1 perk every other level, the player will need 34 level of special and 33 levels of perks it is a character level 68 and I doubt it will be gimped in any way. It will probably take less than 150 hours specially if the player focus on doing quests and doesn't spend much time at all in settlements and crafting (I rounded the hours up while using a rough estimate of a player levelling once every 2 hours in average which means 136 hours), if a player plays 5 hours a day it will take 30 days of playing which is 1 month. Now if the player gets 2 SPECIAL points and then 1 perk every 3 levels it will take him 34 SPECIAL levels and 17 Perk levels which is total character level 52 and still the character will not be gimped because it still has 17 perks and with the added bonus of being able to pick the "best perks" because they will not be locked by SPECIAL value requirement and the best ranks usually require higher levels to pick anyway.
Anyway my point is that it is still not hard to level SPECIAL stats in FO4. We don't see many players with 10 on everything because of my first point in the list post, FO4 SPECIAL does not really matter as much as in FO3 so players get perks instead otherwise like you said it gimps the characters.
Although to be fair FO4 is not that hard even with a gimped character thanks to abundant Power Armor and Fusion Cores, stealth boy usage, even just plain stealth usage since it is so broken in FO4, critical hit mechanic, VATS, companions, etc. Not to mention it is possible to farm a couple Legendary bosses and get a nice legendary weapon and you will not have much difficulty.