But that's not my description, Robert, those are his words - "And in general, it is impossible to play on it without a numpad." - so I'm just reacting to that binary comedy of his where everything in his eyes is always strictly 0 or 1. No numpad? Not even "more difficult to play" but straight up "impossible to play" 🙃
And don't get me wrong here please, I'm not saying that numpad is not extremely beneficial for many use cases, like yours as example with Go, because I know it is. You clearly and nicely described why you need it and you didn't even say how it's impossible to do the work you need without it, just that it's significantly more difficult. So normal civilized way to say things.
Crappified arrow keys are always a valid concern with any keyboard, especially those where up and down together are as big as one regular key, but for numpads there are at least those external ones to buy for cheap if one wants to get a laptop without numpad on its keyboard but still need those keys.
And that's the beauty of having choice in general - we can get laptops with numpad and without, same as with separate keyboards, so everyone can get what they want and need. Except for one individual ("If I'm not hungry hunger does not exist in the world." way of thinking in all of his spams across this board, he even spams the same on German topics fully ignoring it's - in German) there is no right or wrong and having or not having something does not make that product unusable for everyone.