Add lime, maple, red pepper flakes, salt and olive oil to a medium and whisk until emulsified into a dressing, about 1 minute.
Char corn using Bernzomatic ST2200 torch, then remove kernels from the cob. Add corn tomatoes, avocado, cucumber, onion, feta and cilantro to a large bowl. Add dressing and toss to combine.
Transfer to serving platter and garnish with cilantro sprigs, serve immediately.