I find it fascinating how much people choose to read into stuff. I mean for me - Altuve's simply doing something playful at home plate with his teammates after one of the biggest moments of his life. It reminds me of how Adrian Beltre didn't want teammates to touch his helmet. I mean these guys see and are involved with the walk off celebrations throughout their careers and it's not unreasonable to think Altuve may have thought about how he'd react in that moment the next time he hit a walkoff (I believe these guys do visualization stuff regularly). Similar to how football players have planned TD celebrations. In one of the biggest moments of his life - it is reasonable to think he'd remember something he'd planned? or would the mind go blank in excitement? I don't know the answer to that and suggest only a fool would think they do.
Also - in this scenario (where he has to warn his teammates not to rip off his jersey), you'd have to assume that either his teammates didn't know about it, or that he didn't wear it all the time (perhaps only in certain situations). If they wore it all year long, then surely the team would be well aware and know not to rip his jersey off. I guess either of those could be true. Personally, I have no idea if he did, or didn't and won't generate a firm opinion or view without more evidence (has their been any evidence? or right, there isn't).