Yknow. After Lance says they should get out of there (valid suggestion considering giant pillars of death started rising out of the ground), shiro totally disregards him. Then after everything when they get back into their lions Lance growls. Growls. We haven’t seen him angry enough to growl yet. He’s always been the happy one.
This is the start of the rift ripped in the team. It has to be. Lance’s anger towards shiro not listening to him (the way Keith would have listened) is the first sign that Lance will side with Keith when everything goes to shit.
When Lance does, imagine how much more worth they both will feel when they realize they both need each other for stability and strength. The creators even said Lance was Keith’s stability and honestly I think Keith is Lance’s stability in a few ways as well
I say this as a voltron lover, not a klance shipper, but that would be the greatest moment in all of voltron history.