thats ridiculous, - they havent somehow expanded their fanbase in any huge way in the digital era or anything. The same people that liked this album and/or that watched the Netflix documentary are by and large the people that loved em in the 90s and chose to keep up or tap back in.
its an album they made for themselves and each other and their fans, as closure, and it's a pretty great representation of what a reunion album should sound like without falling off or selling out, and somehow still sounding like themselves almost 20 years later. Definitely not just some "cash grab album thrown together posthumously" -- Phife & Tip recorded that shyt together in the same studio with each other, for months and months, before he passed. Phife himself picked the name for the album. Unfortunately Kamaal had to put the finishing touches without Phife, but they'd recorded plenty fully intending to release it as one last proper reunited goodbye album.
speaking as a Tribe fan since the early 90s that was relatively disappointed by Beats Rhymes & Life and The Love Movement albums in real time back then, I think this album is a far better goodbye than they left it at back in 97 and I'm very glad they came back together in time.