Crack in the speaker seal

I just discovered i have a small crack in the upper speaker seal. Never damaged my phone, rarely use it, rarely take it outside, can't get a case. Contacted motorola customer service. Too late to return, moto sent generic RMA email. Phone works, no problems, still looks new. I don't want to RMA because of my prior experience with another company. Brand new item returned back to me scratched and cosmetically damaged(ASUS). I ended up shipping 4 times before the company finally sent me a new one. Never dealt with motorola. Don't know what to expect. Asked customer service if the crack affects water resistance. They had to forward my question somewhere or just giving me the runaround. Been over a week, still waiting for the answer. There's a similar case on moto forum. Looks like that phone came broken out of the box. If the seal is so fragile why even bother making something like this? I hate to RMA a brand new phone. Will think twice next time before buying moto.