Yes, in the past I've tried that glitch found by Paseguud and a similar glitch to mute Sendoff Spring
itself. Then there is also the GB Sounds glitch that lets you mute the music, as well as (more relevant to Omega Ruby), the Poké Radar music glitch
But I tried doing vaguely similar steps (starting from a place with different music, cycling, getting to the Food Court) to the mute Route 214 glitch (this is probably irrelevant since we're dealing with a Generation VI glitch) and the glitch didn't work. I have just remembered that I went into Crooner's Café (and getting from outside of the café to the Food Court does not require a connection) some time before, but I tried going into there, riding the Bicycle or not to the Food Court and it still hasn't worked yet.
Thanks for the suggestion though.