Multiple things: Connor and Ehlers both get top 6 time, so no, that is a weak excuse.
And honestly the 2nd part is a joke. Kucherov would be the best player on the jets, and would play when and where he would be most effective.
"Oh if McDavid was on the jets he'd be the 2nd line center since he only has 3 years of experience".
Firstly, Connor(a 32 Goalscoring 21yr old) was only in the lineup this season because Perreault got injured, secondly Ehlers got promoted to top 6 in his 2nd season because of the lack of skill at LW(and after Ladd left) and took off with it(meaning he outproduced Perreault by a very good margin and Perreault got injured allot, which is what gave both Ehlers and Connor the opportunities they have). Maurice knows Wheeler is one of the leagues best Wingers and he’s a vet who’s been here for a long time to add to that(not to mention he isn’t injury prone like Perreault), Laines in a complete different position from both Ehlers and Connor(though Connor had to work really hard to get where he is now). Just look at Scheifele for example, Maurice had him starving for usage behind Little for half the 2015 season and after the Little injury Scheifele took the 1st line role and became the highest scorer in the league at the second half of that season and is now one of the best Centers in the league today.
Scheifele through the 1st half of the 2015 season had 22 points in the first 35 games(with 17mpg), in the last 36 he had 39pts(with 19mpg) as a result of more usage he had 0.45 more PPG and Laine currently has less usage and compared to that early on Scheifele(as a unproven prospect) we can all acknowledge Laine has more potential.
I agree Kucherov would likely(or rather technically) be the best Jets player if he where on it, but I doubt Maurice would put him above Wheeler on the depth chart for many Maurice like reasons(Vet love, size, work ethic, two-way game and the fact he’s the captain) and his usage and stats would shrink because of it(not gonna jump into how much but it definitely would). Also should note the fact Kucherovs points went up every season he got more usage(plus he had much better qaulity linemates than Laine through his career so far).
To your third part, I think Maurice might had put McDavid at 2C in his rookie season(I doubt that though because people damn well knew he was Generational so he’d likely give him his 1st line usage), but today if Maurice got his hands on McDavid there’s no way he’s not 1C today(because he’s the best in the world and nobody is that stupid to not have him at 1C).
Unlike you I would not be suprised to see Laine score 100 one day(maybe a couple times), due to his dirt low usage and the fact he scored 70 points while having an Elite playmaking Center he’s hardly played with yet and pretty much any type of upper echelon Winger the Jets give him to work with(Ehlers, Connor, Wheeler, Perreault and the list goes on into future prospects) on his team with the potential of getting up to 5 or maybe even 6 more minutes per game.
That said 130 is out of the question, only McDavid can do that at this point now(unless some prospect out of knowhere becomes another McDavid), Laine will not even sniff that.