Do bars always have to match with the snare/clap?

[DooX]

I'm getting serious about making tracks. Need this question answered. I've noticed at least rappers, busta rhymes and on some occasions Eminem, don't actually match their lyrics to the snare/clap.
So is matching it a must?
Check this out for example.
Can you picture yourself with someone for the rest of your life? Standing together, tackling the best of the strife?
The flow is good, but in the end of each sentence it doesn't match the snare/clap...is this a big no no in tracks or is it acceptable as long as there's good flow? I seriously need this answered folks, I know I might be asking for it. But NO FRANK SHIT.