I agree. Based on the attainable you could gain up to 5 Mbps upstream. On the downstream it seems like you could see some improvements also.
Something you want to be aware of before upgrading is that if the fibre cabinet has recently been enabled then things can only go down. What I am implying is that new subscribers will add to the crosstalk and your speed will drop, but by how much depends on how many subscribers with connections that run in in close proximity and various other factors in relation to the line itself. The estimates usually reflect this, but in some cases new cabinets have a greater estimate that the line can handle and sometimes vice-versa. However, the estimates will change based in data collected and in most cases you will be receiving within the range.
Another thing you should be aware of is that if you upgrade then your SNR margins will be a lot lower (by default this will be 6db, and your DLM will also be reset) since you no longer have speed capped so there is a smaller gap between you and background noise (and interference). While this in itself may not present any immediate issues, if your line is encountering many errors then the DLM will take action and may apply interleaving which will raise the latency (may be detrimental if you play competitive games). However, I can see that your modem supports G.INP (impulse protection), so it should apply this if your cabinet has it enabled. But your errors rate looks fine at the moment and I cannot see anything concerning.