You have certainly gotten it correct in terms of "verification".
Now in terms of harmful impact, you would need to be careful about consistently hitting the string bed's sweet spot - if the shuttle makes contact slightly higher than that, the chances of the main strings breaking near the top is very high.
I personally would restring it. Or let the stringer know and ask the person to rectify the situation.
In one of my early stringing jobs (for myself) I accidentally missed out the top cross, but I played with that racquet regularly for at least a year and it actually felt great to use the whole time. I've seen other players that miss out cross strings at the top and bottom on purpose because they prefer it that way.