doesn't really matter, he attacks, averages of openers has largely been redundant over the past decade because they all come in and largely average mid to late 20s, early 30s. It isn't like there is a cue of openers in waiting who'd nailed on score 40+ average, although the main weapon of the internet provocateur is the unknown, "X should be selected and would have done....." (better)
like had Foakes been picked this series England would be 14-0 up already having played 3.5 Tests, the fact that England should have won the opening Test but declared when Root and Robinson were going well (run a ball, nearing 50 partnership) and then couldn't take out the tail from 209/7 with the target 281 makes no never mind. Chances were missed and that isn't ignoring those, it is mainly the theory that 'best keeper' means win every time that ignores all other factors in losses
I don't care one way or the other re Crawley, or Bairstow keeping (I just hate the repeated flawed arguments re who should keep, including Bairstow to open or bat 3 to make way), but they're in, and the people that know their onions aka the coaches have decided on who they picked.....