The danger lies in the Equal Loudness Contour, a principle of psychoacoustics. The human ear is naturally less sensitive to bass frequencies than it is to mid-range frequencies (like the human voice). To make bass sound "punchy" and audible, the volume must be significantly higher than the rest of the track.
The original’s gentle, dusty aesthetic relies on dynamic range. A heavy boost flattens that — you lose the “quiet storm” intimacy. ears bass boosted