The problem is, most noobs use web wallets because they are too lazy to download Core, or any of the wallets that will give you proper options like -zapwallettxes, RPF or whatever. The "asking for miners" resort is pretty lame and not very user friendly... it's a problem. Web wallets should be forced to give more options in case this happens.
Still, if people are genuinely aiming for Bitcoin to be more convenient for less techy new users like me, wallets should be able to handle these issues themselves. Of course you should be able to change these options and make your own choices but I don't think there's anything wrong with experimenting by using a more simplified wallet.