Lutron doesn't make anything similar to what the OP has or might be looking for.

The current crop of low-cost dimmer/control modules for LED strips all respond to the NEC remote protocol with specific function numbers (command numbers) for specific commands, however, they completely ignore the NEC Manufacturer code and will respond to any/all of them.

This is going to be problematic for most people because NEC is the most common IR protocol - it has been for well over a decade. Even protocols that offer slight variation on the original NEC,such as TiVo's will still be picked up by these LED controllers.

TRC's recommendation is absolutely the only way around this without obtaining new LED controllers - and as far as I know, every single one currently available (all of them are name-less imports) has the same issue, regardless of where you buy it. You'd pretty much need to replace the firmware on one of the existing devices to get around this.

That said, depending on what kind of controller you have and what you want to do with it, you might be able to replace it with something else entirely, even if that replacement wasn't originally intended to control LEDs at all. If you have a simple single-color light strip then all you need to turn it ON/OFF is the ability to connect and disconnect 12v to it (with a suitable current supply). If you want to dim the LEDs you further need the ability to regulate the 12v - with a digital potentiometer. The ON/OFF is easy to solve with an IR-based power relay to which you'd connect the LED's power transformer, teaching it some other un-duplicated code as a trigger.