Yes, that's the one. It's given in 2 mA increments, so 0x32 = 50 => 100 mA. You can increase it to whatever seems appropriate for your device. There's no CRC or checksum on the USB descriptors, so you just need to change this one value.
Yes, on most desktop PCs this value doesn't matter much, but on laptops the story can be a bit different. It *can* be used by the host to limit current / detect overcurrent and just shut down the USB port. And if for nothing else, putting a realistic value in there is respectful for users. (For those that will have a look, which is all the more likely if your users are technicians and engineers.)