Hey I love Javier as much as you do and think he's more of a weapon than LMJ but I think the Astros brain trust absolutely had it right sandwiching Javier's gm 4 start in Philly between McCullers and Verlander for that very reason. He's a one-man pitching machine who has the effect of destroying a team's morale by dotting Ks all over 'em and not letting them get a single fucking hit.
If we hadn't blown gm 1, then Javier would have been the gm 3 starter in that "YOU'VE NEVER SEEN A CROWD UNTIL YOU'VE SEEN A PHILLY CROWD!!!" environment to theoretically put the Astros into an insurmountable 3-0 WS lead. I don't think they thought Lance would shit the bed as badly as he did, but I think they knew there was a better chance of Philly getting to LMJ in gm 3 in Philly and by pitching Javier in that pivotal fourth game, it would shut the Philly crowd into submission and put a huge reset button on the series.
That is why it was key to pitch him in that spot. Worst case scenario happened with LMJ and if it had happened with the games flipped and Philly down 1-2 but then getting five home runs and blasting the shit out of us in the boxscore to tie the series, that Philly clubhouse probably feels a lot more loose and locked-in for JV in game 5. I know momentum isn't really a thing in baseball, but human nature being what it is, I'd argue that Javier's performance Wed night stayed with them a bit against JV.
But IDMAS because we're winning this game tonight and dogpiling on the mound at Minute Maid.