Can honestly say in my time being in Malaysia, never really even noticed it was islamic, as it's not really in your face, especially in KL, Penang, even Langkawi, few elements such as beaches, etc or food sure but it's not like say the middle east/gulf, rather laid back.
Besides if you want Bali is always a option (not islamic)
Besides if you want Bali is always a option (not islamic)