No it is not meaningless. You are using experience in too metaphysical a sense. A bird, a bacteria and even a stone all experience time inasmuch as chemical processes occur and their atoms vibrate and decay.From the point of view of pure (current knowledge in) physics, the question whether light experiences time is meaningless. Not due to relativity, but due to the fact that pure physics has nothing to say about the concept of "experience". For that matter, the question whether a stone experiences time, or whether a bacteria experiences time, or whether a bird experiences time, is equally meaningless.
The same cannot be said for photons, which do not have such events.
Rocks experience time quite well without any need for consciousness.The problem is that we don't understand consciousness and experience.