I disagree on that. If anything its a good "way point" to get interested in other games.
Before PXZ 1 came out back in 2013, I only played about three series between them all (Mega Man, Street Fighter and Tekken) but man it got my horizon growing like mad.
Fast forward to 2020. About 16 more of the series/games featured in 1 and 2. So it definitely helped.
Some now rank among my favourite games (Yakuza and Tales), some I enjoyed (Virtua Fighter, Devil May Cry, Valkyria Chronicles, Soul Calibur etc) and some I felt were disappointing (Shining, God Eater, Resonance of Fate).
And a few like Sakura Wars and Darkstalkers I'm still curious for.
So honestly I think to yourself
Bonzi
I would pick it up as a wayfinder sort of game as I did about 7 years ago when I got the first game at launch.
That was a bit lengthy but you catch my view of it.