Spurs found an injury-time equaliser via Dejan Kulusevski to earn the point.
Dias later said: "It's a feeling of frustration, very similar to the Liverpool game. A game I would say we dominated the most part of it and in the end the draw was what we could get.
"Overall I can't say I'm not happy with the performance of the team. Everyone was on it. The team was very aggressive. We were very sharp, we created the chances.
"Unfortunately we didn't take the three points but I think it'll be part of the consistency of being the team we are to keep moving forwards even though we didn't get the three points today.
"It is football, sometimes we concede a goal that we shouldn't. Sometimes we don't score the goals we should have scored. It's a mix of it and it's the not knowing what is going to happen that makes football beautiful.
"All I can say is from our side we are going to keep doing what we believe in. As we all saw today we can be very, very good as we have been in the past and we are still here. The result now, maybe the past three might have not gone our way but the team is there and you could see the team were very alive."