It's strange, but they allowed it.
And in the case where all the serves came from one "tennis player," they considered it fair and didn't replay it.

This is a predictable thing.
That is, both knew.
If one didn't think ahead, it's his responsibility.
Especially when he realized that the serves were coming one after another, he didn't immediately ask to stop the game, but continued to play the point.

And there wasn't enough time for the most important action!!!

The calculation was that it would be enough.
Considering the previous time spent on deliberation.
But the mouse failed – precisely at that critical moment (this lag doesn't occur from the beginning of the game; I've already written about this).
Which was not suspected until then – the responsibility for the situation lies with the developers; they acknowledged it and fixed it.
If it weren't for this fact, the decision would have been different, I'm sure.