Not necessarily, but full-power vinyl grooves would cause all sorts of distortion and misbehavior for the very mechanical nature of cartridges and tonearms. Likewise, high frequencies would be so small they couldn't really be picked up.
Hence the RIAA curve, which is an eq curve applied to the mastering before put to vinyl that reduces the lows and exaggerates the highs. It is reversed by the phono preamp during playback.
