Your post is well taken. But I fail to see how potential squadrons of fighters (we have to wait and see what actually happens) can provide much help since they cannot be always provide air cover to a dedicated maritime operation (ignoring they might be needed elsewhere) unless you want to stay completely predictable and be limited to near-coastal operations. In which case Myanmar has even more options.
As for the modern frigates to be procured, what are the updates/specifics on this?
BD Navy has put in a request for for 2 modern frigates and no good reason for BD government to deny this.
The warships will almost certainly come front either China or Sunday Korea.
Even taken out the involvement of BD air-force, these frigates along with associated corvettes like
Type-056 that BD Navy is currently inducting in numbers, would mean that even a combined Myanmar air and naval attack would potentially be very costly for the attacking force without a high probability of success.