> who worked hard to make windows phone die

You mean Microsoft? No backwards-compatibility with Windows Mobile to begin with (so companies can't reuse their existing investment into line-of-business apps on actually nice modern devices either), then they reset the ecosystem 2 times (once during the WP7->WP8 transition, another time during the Windows 10 transition).

Well put. Microsoft following the "Double barrel shotgun, apply one wad per foot." (Reset ecosystem 2 times.)