It's there in in black & white in the simplification & avoidance section and also in the summary motion to conference.

And while difficult to quantify (hence no revenue assumed in the paper), indications are that such a measure would eventually double the yield of CGT. Not to mention the impact of the pre-existing proposal to abolish CGT taper relief.

So you should care about CGT: it's a tax on realised wealth, rahter than income; it would raise a lot more if simplified and improved and, without it, the present tax system would fall apart (income to capital schemes are two-a-penny).