Absolutely. That picture alone has been the source of that theory for a long time, and now that Shiro is confirmed mlm, it’s all coming together now:
- Shiro was out at the Garrison and in a serious long-term relationship with another man
- Lance really looked up to him, called him his “hero”
- Lance’s arc is one of self-discovery
- Keith’s race and Pidge’s gender have both become canonically significant and have strongly involved Hunk and Allura respectively
We are truly on the edge of something great here. Having Lance go to Shiro for support about his sexuality would be so fucking amazing for queer kids watching like holy shit.