It certainly affects a lot of players, causes frustration.
Touchscreen precision is varying between devices. Sometimes a finger near a corner may be enough to confuse it. Especially on tablets, that are held differently than phones.
It’s a strategy game that should perform the player intended (!) actions.
There is no benefit in having a default selection in first place.
The amount of code change required is probably 1 (one) line.
So, yes, I do ask Nexon if they could disable default selection because it simply should be no effort on their side. If, however, it would require 5 hours of coding, the amount of work would be disproportionate.