I know exactly what you mean. The only way that 32bpc color correction will work in Premiere is if you use and only use color finesse inside, then use dynamic link or copy paste sequence while both AE and Premiere are open.
One other option is rendering out full 4:4:4 16bit codecs such as Tiff(lzw off), avi 10 bit uncompressed, or some other huge hard drive hogging codec.
Other people may say, oh rendering out 4:2:2 or 4:2:0 is good enough, but after 5 renders, let’s compare chroma loss. AE seems to do a better job with rasterized Fonts, color, and more effects are 16bpc or higher.