Not at all. The primary issue is mic distance. Noise removal is a wonderful tool but it is a bandaid fix to a problem. The pop filter has zero effect on background noise which comes from all angles and zero effect on white noise which is caused most often by unshielded equipment and overdriving a microphone, rather it's for plosive consonants only to reduce force of air from the mouth of the speaker. The lower the gain, the less white noise will be audible in the signal which is why mic distance is the primary factor as a closer mic picking up the main audio source at a higher db level means you can reduce the gain further.
I'm not discounting noise removal, but if your gear and recording setup are done properly you don't even need to use it. I used to use noise removal all the time. Now, with a proper noise gate and compressor, I don't bother anymore.
Anyone recording with a only DSLR is doing so by being too far from a crappy onboard mic that has to work too hard to get a good audio signal from their voice. It's that simple and using a mic closer to the source will help dramatically.
